论文:鸟嘌呤盐酸盐的检验方法.doc
《论文:鸟嘌呤盐酸盐的检验方法.doc》由会员分享,可在线阅读,更多相关《论文:鸟嘌呤盐酸盐的检验方法.doc(4页珍藏版)》请在三一办公上搜索。
1、鸟嘌呤盐酸盐的检验方法MOA of Guanine HCL1、外观appearance目视检查。Visual testing2、溶液颜色(中国药典附录 IX A)solution color(Chinese pharmacopoeia, appendix IX A)称取2.0g样品置于50mL比色管中,加入2mol/L的氢氧化钠溶液溶解至刻度,再与等厚度的Y5对照液进行目视比色,色泽不得比对照液深。Weigh 2.0g sample into 50ml comparison tubes, add 2mol/L NaOH solution, compared to Y5 contrast sol
2、ution, the color should not be darker than contrast solution.3、氮含量测定(中国药典二部附录 D)nitrogen testing(Chinese pharmacopoeia, appendix D)准确称量0.10g(0.0001g)试样,按中国药典二部附录 D中的第一法进行测定并计算出氮的量N(mg),并按下式计算出试样中氮的百分含量:Weigh 0.10g(0.0001g)sample, use the first method in Chinese pharmacopoeia, appendix D to calculate
3、 nitrogen volume(mg), and get percentage content of nitrogen in the sample according to below method试样的氮含量nitrogen content in the sample(%)式中:N试样中测量出来的氮的量,mg;quantity of nitrogen in the samplem试样的质量,g。weight of the sample4、干燥失重:中国药典二部附录VIII L losing on drying: Chinese pharmacopoeia, appendix VIII L取
4、1.02.0g供试品,置于已恒重的扁平称量瓶(带盖)中,精密称定,在105下烘3小时。Weigh 1.02.0g sample, into flat weighing bottle, weigh it, then heat under 105 for 3 hours.以质量百分数表示的干燥失重 (X)按下式计算Calculate losing on drying according to below method,式中:W0恒重的空瓶的质量,g;empty bottle weight W1(空瓶供试品)的重量,g;empty bottle + sample weight W2(空瓶+供试品)炽
5、灼后的重量,g。empty bottle + sample after being heated.5、硫酸盐灰分:中国药典二部附录VIII Nsulfate ash (Chinese pharmacopoeia, appendix VIII N)取1.02.0g供试品,置于已恒重的坩埚(带盖)中,精密称定,在电炉上缓缓炽灼炭化,放冷至室温,加0.5mL硫酸使湿润,在电炉上加热至硫酸蒸气除尽后,在700800炽灼1小时,移干燥器中,冷却至室温,精密称定。Weigh 1.02.0g sample, put into constant weight crucible, weigh it. ignit
6、ion in electric stove till full carbonization, then cool to air temperature, add 0.5ml vitriol to wet the residue, then continue ignition in electric stove till no sulfate smoke, then put into 700-800 ignition till constant weight, cool down and weigh.以质量百分数表示的灰分(X)按下式计算:Ash content(X) by weight cal
7、culated by below method:式中:W0恒重的空坩埚的质量,g;weight of constant weight crucible W1(空坩埚供试品)的质量,g;weight of constant weight crucible + sample W2(空坩埚+供试品)炽灼后的重量,g。weigh of constant weight crucible + sample after ignition6、重金属(中国药典二部附录 VIII H 第三法)Heavy metal (Chinese pharmacopoeia, appendix VIII H the third
8、 method)称取样品1.00g,置于50ml比色管中,加10mL的2mol/L的氢氧化钠溶液使其完全溶解后,加水15mL混匀;另取一支比色管加1mL(10ug/mL)铅标准溶液和10mL的2mol/L的氢氧化钠溶液及14mL水混合均匀后作对照管,在两支管中分别加入硫化钠试液5滴,样品管的颜色不得比对照管更深。Weigh sample 1.00g, into 50ml comparison tubes, add 10ml of 2mol/L NaOH solution till fully dissolved, add 15ml water; take another color contr
![论文:鸟嘌呤盐酸盐的检验方法.doc_第1页](https://www.31ppt.com/fileroot1/2023-2/11/5f772d3e-180e-45a5-ae66-c9a88871522b/5f772d3e-180e-45a5-ae66-c9a88871522b1.gif)
![论文:鸟嘌呤盐酸盐的检验方法.doc_第2页](https://www.31ppt.com/fileroot1/2023-2/11/5f772d3e-180e-45a5-ae66-c9a88871522b/5f772d3e-180e-45a5-ae66-c9a88871522b2.gif)
![论文:鸟嘌呤盐酸盐的检验方法.doc_第3页](https://www.31ppt.com/fileroot1/2023-2/11/5f772d3e-180e-45a5-ae66-c9a88871522b/5f772d3e-180e-45a5-ae66-c9a88871522b3.gif)
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 论文 嘌呤 盐酸 检验 方法
![提示](https://www.31ppt.com/images/bang_tan.gif)
链接地址:https://www.31ppt.com/p-2322932.html